Frequencies for first 10,000 rows of pet_scan_srvc_desc variable in pos2011 dataset :

         Services Provided: PET Scanner |
                            Description |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
                                        |      8,614       86.14       86.14
                           NOT PROVIDED |      1,295       12.95       99.09
                      PROVIDED BY STAFF |         28        0.28       99.37
PROVIDED BY STAFF AND UNDER ARRANGEMENT |         11        0.11       99.48
             PROVIDED UNDER ARRANGEMENT |         52        0.52      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Apr 2019